Flushing-valve for elevated water-tanks.



3., LANE & J. ROLSTON. FLUSHING VALVE FOR ELEVATED WATER TANKS.

APPLICATION IILED'APE.18,I1912.

1,068,349," I v Peptentd'July 22 f1913 w v 4 3. 5:? l

To all whom it may concern UNITED STATES BATEN T OFFICE.

JOSEPH LA NE AND JOHN ROLSTON, 0F MINNEAPOLIS, MINNESOTA; SAID ROLSTON ASSIGNQR TO EjAID LANE.

. ILU'SHINq-VALVE FOR ELEVATED WATER-TANKS;

- Be it known. that we, JOSEPH LANE and Joan RoLsToN, citizens of the United States,

residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improve ments in Flushing-Valves for Elevated Water-Tanks; and we do hereby declare the following tube a full, clear, and exact 'description of the invention, such as Willenable nthers skilled in they art to..which it, ap-

pertains tomake anduse the same-1 Our inventionha's for its object to provide an improved flushing valve for ele vated jwater towers and the like, and to suchv ends,-generally stated, the invention consits of the novel devices "and combinations of devices. hereinafter described .and defined in the claims; 1

In the use of elevated waterttanks such as extensively employedwater: w r Of which may he mentions towns and in many" large manufacturing plants, V with depressed or hopper-like bottomsg jitfid to provide. flushing valves in the bottoms of the tanks. These-flushing valves have not, so far-as-we are aware, hithertmbeen satisfactory for several reasons one of;

valves to be held open' sediment, and

hence, to leak, and the ten ency'of the sediment to lock or hold the valves against free movements. .2 v i Our invention provides an extremelysimple and highly efficient flushing valve for theabove purpose, which is free from the" above noted objections. i

In the accompanying drawings: which illustrate the" invention, like characters indicate like parts throughout the several broken away and some parts sectioned,

showing an elevated Water tower equipped "Withone of our improved flushing valves;'

2 is a plantview of the flushing valve; Fig. 3 is a section taken on the line gr w. on Fig. 2, andshowing also a ortion' or the hopper-like bottom of the tan The numeral 1 indicates the elevated tank.

.formed with a depressed or hop er-like hot- Specification of Letters Patent. Application filed April 18, 1312. Serial No. 691,762.

l supply up into the tank through a stufling box it'is customary to provide suchtanksthe tendency of smooth source of water Patented July 22, 1913.

thereof, either at the axis of the tank or at one side thereof.

The numeral 5 indicates a flushing pipe which is screwed into or. connected to a valve otherwise rigidly secured to the lower portion of the hopper-like bottom 2 of the tank.

The numeral 7 indicates a vertically extended valve actuating rod which extends pipe 5 and upward 8 applied to said valve plate 6. The flushing pipe 7 extends to a suitable point of yalveactuating rod 7 is mounted in keeper bracketsQ. on the saidflushing pi-pe,"and is provided at its lower end, within easy reach from'the ground, with an operating lever or hand piece 10.

The upper face of the valve seating plate 6 is machined 05, preferably flat and smooth and is shown ashorizontally disposed, althou h it may vary from-the horizontal, but s 'ould be located at the bottom or lower portion of the tank, so that it. may 'completely drai-nthetank and clear the sameof sediment. The numeral 11 indicates a valve proper,

which is secured to theupper end of the rod 7', .a1 id1..the under face of which is machined off, preferably smooth and flat, so 'that it will form a water tight joint with the upper face of the valve late 6. The rod .7 serves toimpart oscilatory movements to the valve 11 and 1s shown as pro vided With'a square shank l2 fitting the "square seat in the said valve. A coiled spring 13 compressed between the hub of the valve 11' and the nut 14-011 the threaded upper end of therod 7, yieldingly presses the hub end 6f the valve tightly against the face of the valve plate. The 'free end-.of the said valve 11 works under and'is engaged by.=a laterally projecting segmental flange '15 of a segmental presser bar 16. This presser bar 16 is mounted for slight vertical movementson studs 17, the lower ends of which 'are shown as screwed into the flange of the valve'plate 6. As shown, there are three of these studs 17, and on each thereof, there is a coiled spring 18 compressed between the said bar 16 and nuts 19 applied to the threaded upper ends of the studs 17. The presser bar 16 does not engage with the face of the valve plate 6, and hence, the

discharge and the through the bottom seating plate or casing 6, bolted or springs 18 exert their force on the free end seat, and a downwardly of the valve, 11 and hold the same pressed tightly downward'upon't'he face of the said valve plate. Obviously,

be varied:

2 and 3,vthe valve is shown in aby full'lines', but in Fig. 2, thesaid open position by dotted lines. As is evident, the valve is moved to andv from aniopen position by a-sliding or wiping action which keeps all sediment wiped clean from the face ot the valveseat and'from the face of the valve. This insures a any wear which may take valve and seat bound with aclose liquid Furthermore, accumulated sedi- T tight fit. ment cannot interfere with the movements i of its valve inasmuch-as'the edge thereof will readily force its, way

The valve may be quickly Als0, the valve is of small through any collected sediment; opened and,'quickly closed, and when closed forms 'a'tight' joint which will not leak. cost and may be easily ap'plied'either to a new tank, or to a tank already erected. 7 What, we claim is:

l. The combination with 'a tank, of a'valve seat secured on the bottom thereof, a flushwing pipe extended downward from a dispharge port of said valve seat, a valve actuating rod extended upwar end-of said rod and mounted for oscillatory by adjustments of the nuts 14 and 18,. the tension under which, thevalve will be engaged with; its seatmay re-acting against the upper "seat secured in tight joint and causes place to keep the tures in presence of d through said valve seat, a valve connected to the upper sliding movementson the face ofsaid valve spring-pressed bar engaging and pressing downward on the said valve and holding the same tightly seated, the said valve be-ingfree for sight vertical movements onsaid rod, and a spring end of saidrod st said -valve and .assisting.the

and agai sprireig-pr edbar to hold sa d valve tightly l sea A v- 2..The combinatio'n with'a tank, of a valve the bottom thereof, a flushing pipeextending downward from a discharge port in said valve seat, a stufiing box applied to said valve seat, a valve actuating rod'extended through said stuffing box and valve seat, a valve connected to the up.- per end of said rod for oscillatory movements therewith, but free for 'vertlcalmovements thereon, a spring applied to the upper end of said rod and yieldingly pressing the hub of said valve downward on its seat, studs applied to said valve seat along the path of movement of the free end of said valve, a presser movements on said studs and pressing the free end of said valve downward on its seat, and springs applied to said studs 'andyieldingly forcing-said presser bar downward.

In testimony whereof we aflix our signatwo witnesses." JOSEPH LANE. JOHN ROLSTON, Witnesses:

HERMAN OLSON, v 'W. L. LYM'AN.

bar 7 mounted for vertical 

